ETA 19/0665 v03 of 22/01/2020 page 15 of 18
Cleaning of diamond cored holes with roughening with Hilti roughening tool TE-YRT (RT):
For all drill hole diameters d
0
and all drill hole depths l
b.
Flush 2 times by inserting a water hose (water-line pressure) to the back of the hole
until water runs clear.
Brush 2 times with the specified brush (see Table B8) by inserting the steel brush
Hilti HIT-RB to the back of the hole (if needed with extension) in a twisting motion
and removing it.
The brush must produce natural resistance as it enters the drill hole (brush Ø
≥
drill hole Ø) - if not the brush is too small and must be replaced with the proper brush
diameter.
Blow 2 times from the back of the hole (if needed with nozzle extension) over the
whole length with oil-free compressed air (min. 6 bar at 6 m³/h) until return air stream
is free of noticeable dust and water. Remove all water from the drill hole until it is
completely dried before mortar injection. Blow time see Table B5.
For drill hole diameters ≥ 32 mm the compressor has to supply a minimum air flow of
140 m³/h.
Rebar preparation
Before use, make sure the rebar is dry and free of oil or another residue.
Mark the embedment depth on the rebar (e.g. with tape) → l
b.
Insert rebar in drill hole to verify hole and setting depth l
b
.
Injection preparation
Tightly attach Hilti mixing nozzle HIT-RE-M to foil pack manifold. Do not modify the
mixing nozzle.
Observe the instruction for use of the dispenser.
Check foil pack holder for proper function. Insert foil pack into foil pack holder and
put holder into dispenser.
The foil pack opens automatically as dispensing is initiated. Depending on the size of
the foil pack an initial amount of adhesive has to be discarded.
Discarded quantities are:
2 strokes for 330 ml foil pack,
3 strokes for 500 ml foil pack,
4 strokes for 500 ml foil pack < 5°C.
The minimum foil pack temperature is 0°C.
Annex B8/4
of ETA N° 19/0665
Intended Use
Installation instructions